Manchester United goalkeeper David de Gea insists they've improved at the back this season.
De Gea believes the progress being made is clear.
"We have improved a lot defensively. We are conceding fewer goals than last season," he said.
"Last year we were letting in too many goals, but we are defending better and from there the team is improving.
"Of course, when you defend well, the team is bound to improve. We have some great players up front and we just have to keep on improving.
"The team is a lot more compact and from that base I think the team is only going to get better, and we will be much stronger and a more difficult team to beat."
